Bluetooth: Read stored link key information when powering on controller

The information about max stored link keys and current stored link keys
should be read at controller initialization. So issue HCI Read Stored
Link Key command with BDADDR_ANY and read_all flag set to 0x01 to
retrieve this information.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ba0d1fdccbd9f27899c604a0760aebdbf63ade8f..96572a48948eb6e10aa2c248c7e182e610ac79fd 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -731,6 +731,14 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
 
        hci_setup_event_mask(req);
 
+       if (hdev->commands[6] & 0x20) {
+               struct hci_cp_read_stored_link_key cp;
+
+               bacpy(&cp.bdaddr, BDADDR_ANY);
+               cp.read_all = 0x01;
+               hci_req_add(req, HCI_OP_READ_STORED_LINK_KEY, sizeof(cp), &cp);
+       }
+
        /* Some Broadcom based Bluetooth controllers do not support the
         * Delete Stored Link Key command. They are clearly indicating its
         * absence in the bit mask of supported commands.